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Sharp SM-SX1 Service Manual page 24

1-bit amplifier
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SM-SX1/SX1W
A
B
C
D312
D311
D
D310
E
F
VOL301
MAIN VOLUME
G
H
1
R325
R323
C318
D303
Q303
IC303
3 2 1
R393
R317
D306
R318
1
C312
2
Q305
3
4
Q309
IC302
D307
5
E C B
9
7
R328
R391
8
IC306
6
R319
R316
Q306
E C B
R330
IC301
ZD302
3
C315
2
1
R313
C305
R311
IC304
3
IC305
2
1 2 3
1
R397
D313 D314
Q307
E C B
D328
R320
ZD303
C317
CK50
C316
R382
Q326
Q325
Q328
Q327
D320 D321
C351
R364
Q321
Q323
R353
Q311
C352
Q324
R365
Q322
R356
CK26
R339 R338
R305
CK27
C334
R306
R332
R337
D302
D301
Q301
Q302
R304
R301
R302
R303
CK12
CK13
CK14
CK7
CK6 CK8
CK3
BI302
16
16151413121110 9 8 7 6 5 4 3 2 1
CNP801
P26 1 - C
TO DIGITAL PWB
2
Figure 24 WIRING SIDE OF P.W.BOARD (1/8)
R326
R324
3
3
2
2
1
1
CNS302A
CNP302
CK17
CK52
1
P28 6 - C
2
R309
CNSA4
C303
3
R308
TO 1 BIT AMP.
4
PWB
R315
3
2
C311
1
R314
L303
E
C
B
P28 6 - C
5
4
CNWAM3
3
2
TO 1 BIT AMP.
1
PWB
R399
11
WH
11
WH
10
R398
WH
9
WH
P24 4 - H
8
WH
7
CNP902
WH
6
WH
5
WH
4
R347
WH
MICROCOMPUTER
3
D323
WH
2
RD
1
1
R354
CNS902
COR901
R352
CK18
Q310
CK35
CK34
P28 6 - A
1
CK33
2
CNWAM1
3
D316
4
TO 1 BIT AMP.
PWB
R336
CK32
C333
D317
1
2
P28 6 - A
3
CNWAM2
4
5
TO 1 BIT AMP.
6
PWB
1
MAIN PWB-A1 (TOP)
CNS801
3
4
– 24 –
8
7
6
5
4
3
2
1
CNS302C
6
5
4
3
2
1
CNS302B
TO
PWB
5
UNT502
CNWS504
TO POWER
PWB
P30 5-A
6

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